"Can you take a look at https://itch.io/t/1345585/a-step-by-step-guide and tell me whether it clarifies things?" No. It does not, because that's what I did.
"Though I was trying to add more criminal psychology into the game. For example, instead of a general "stabbing", there are different types of stabbing, which can reflect different motives and point to different culprits. Depending on how much a culprit wants the victim to suffer, they can choose rat poison." That makes the game even extra complicated.
"The interrogation part is a simplified version of Interrogation (the game), which is basically a game of deception where you have several suspects who might lie, try to figure the right questions and the right way to ask them, and cross-reference different suspects' claims to obtain the true answers. It can get pretty complex." You could have made the first interrogations ( plural ) easier, with fewer suspects or even fewer lies.
"I'm just wondering why you think it is a fake clue. It is a blackmail message, which is related to the lucre motive (financial gain or preventing financial loss). " There is a suspect file!?!?! Instead of telling me every single time I talk to someone and they telling me that they might be lying, you could have reminded me that the suspect file exists.
"Do you mean automatically starting a new game? Yeah, I can consider that if it makes it clearer. I wanted to keep the old save just in case the player wants to review their last game (whether they won or not), but I'll think of something. " I mean either changing what it says on the "Instructions" page or automatically starting a new game.
"I can consider doing that too. This has to do with the randomized algorithm as the characters' dialogues and options are randomly chosen, but if it can help, I can consider hard-coding it in the future or giving more hints." You definitely should. If I, as a player, try something and it does not work, I might just not try it again AT ALL.
- Galse22